Lock



P. SOL/HNI.

LOCK.

APPLICATION FILED IUIIE 8,1920.

'Patented May 31, 1921.

2 SHEETS-SHEET 2 UNITED STATES PETER SOLAIN, OF ASTORIA, NEW YORK.

LOCK.

lineair.

Specification of Letters Patent.

Patented May 31, 1921.

Application filed June 8, 1920. Serial No. 387,314.

To all whom 'it may concern Be it known that l, PETER SOLAINI, a subject of the King of ltaly, residing at Astoria, Long island, New York, have invented a new and useful Lock, of which the followinp` is a specification.

My invention relates in general to locks, and particularly to locks which may be used on either sliding or swinging;Y doors.

It is an object of my invention to provide a lock which may not be easily picked.

A further object of my invention is to provide a lock in which the operating knob or key may be positioned a convenient distance away from the edge of the door.

1t is a further object of my invention to provide a lock having a dead bolt and a latch bolt which may be both operated by a single knob or key.

It is another object to provide a `lock which may be made extremely thin for use on trunks, for example.

Other objects and advantages will appear as the specification proceeds.

In the preferred form of my invention, there is provided a casing in which is journaled a substantially arcuate dead bolt. The casing` is mounted upon one door member and upon the other door member is mounted a suitable keepe with which the dead bolt engages. An operatingpinion is provided for cooperation with teeth carried `by the dead bolt for operating the latter. A cam and follower are `preferably provided for moving the dead bolt to and securing the latter in either of its extreme positions. The cam and follower may also serve to with draw the latch bolt. A suitable night latch may be provided for lockingthe dead bolt in one or more positions.

ln the accompanying drawings which show merely a preferred form of my invention,

Figure 1 is a side elevation of my lock havingone topplate removed and showing parts of the keeper in section.

Fig. 2 is a sectional view taken substantially in the plane of the line 2 2 of Fig. 1 and showing my lock and keeper applied to door members.

F 3 is a fragmentary view of certain det-ails. l

Fig. 4- is an edge view of a modified form of my invention.

Fig. 5 is a view and side elevation of the lock shown in Fig. 4 and having one top plate removed.

In said drawings7 5 indicates the lock casing. t3 indicates the keeper casing. Within the keeper casing` are preferably provided lugs 7 8. Apertures 9 9 are provided in the edge of the keeper casing to accommodate the dead bolt of the lock casing. Journaled in the lock casing is a pin 10. Secured to the pin 10 is the dead bolt 11. Carried by the dead bolt or formed integral therewith are gear teeth 12-12. Rotatably mounted in the casing` at a suitable distance from the door edge thereof is a knob and key spindle 13. Mounted upon the key spindle is a pinion 14E which cooperates with the teeth on the toothed segment or dead bolt. Non-rotatably secured to the pin 10 as by means of the lug 15 and recess 16 is a cam member 17.

Within the casing is preferably mounted a pair of guides 18-18. Between these zguides is slidably mounted -a latch bolt 19. An aperture 2O may be provided in the latch bolt to iit over the pin 10. A pin or follower 21 is provided on the latch bolt for coperation with the cam 17. Springs 22 serve to urge the latch bolt outwardly to the latching position and to cause the cam and follower to interengage. A suitable night latch 23 operable from the inside of the door may be provided. This night latch may cooperate with recesses 2& 25 in the dead bolt for securingthe latter in one or more positions. A stop suoli as 2G may be provided for the ends of the dead bolt. It will be seen that the cam member and dead bolt move substantially as a single member.

Mounted on the door at the side opposite the lock is any suitable lock such as the cylinder lock 2T. rThe cylinder lock may be provided with a projecting' pin having a lug- 28 thereon for cooperation with the spindle 13. rThe spindle 13 may likewise have an upstanding lug 29 to provide a lost motion connection between the cylinder lock and the spindle 13. This lost motion connection is desirable in order to permit a key in the cylinder lock to be turned back to the position where it may be withdrawn, without disturbing the dead bolt. The knob 30 may be provided on the inside end of the spindle 13 for rotating the latter.

After the dead bolt has been moved to the unlocked position as shown in Fig. 1, the

dead bolt and cam may be moved still farther in a clockwise direction. Upon such further movement otl the cam the follower will ride up the inclined cam surface and the latch bolt 19 will be withdrawn to permit the door to be opened.

In the modifications shown in Figs. t and 5, the dead bolt l1 and pinion 14 cooperate in the same manner as the segment and pinion hereinbelore described. Carried by the dead bolt and preferably integral therewith is the cam member 1?". A 'follower 2l is pivoted to the casing 5 as by means of the pin 3l. The end or the follower 21 engages and cooperates with the cam 17. A spring 22 is suitably secured to the casing' and urges the 'follower into engagement with the cam. A suitable stop such as 26 may be provided for one end of the dead bolt, and the pin 32 may serve as a stop tor the other end.

In the end of the spindle 13 there may be a slot 29 to receive a blade 28 from a suitable lock 27. The number of teeth on the I segment ll and pinion le should preferably besuch that when the dead bolt is moved to the locked position, the position ot the slot- 29 will be the same as when the dead bolt is in the unlocked position. Such an arrangement will permit a key from the cylinder lock to be inserted or withdrawn when the dead bolt is in either extreme position.

It should be understood that the springs 22 and 22 are of such strength as to snap the dead bolt into either of its extreme positions when the dead bolt has been moved part way by means of a knob or key.

The operation of my device is as tollows VVhen a key has been inserted into the cylinder look and the latter turned in a clockwise direction as viewed in Figsl l and 5, the pinion will rotate the dead bolt or segment. At the same time, the follower 21--21 will ride up and over the cam and the spring will be stressed. lWhen the dead bolt approaches its locked position, the spring will ride upon the inclined surface of the cam and snap the dead bolt to its extreme position where it may be stopped by means of the stops described.

Vhen the dead bolt has been moved to a locked position, the night latch 23 may be moved into engagement with the recess 24 to lock the dead bolt in place and prevent the latter from being moved either by a key or by the knob. If desired, the night latch may also be engaged with the recess 25 when the dead bolt is in the unlocked position, and in such case, the latch bolt will act as a lock.

The lock shown in Figs. 4 and 5 may be made extremely thin and is particularly adapted for use on trunks. Either of the locks may however be used on doors of either the sliding or swinging type. Vhile I have described specific embodiments of my invention, I wish it to be understood that various modifications and changes may be made, all coming within the scope otl the appended claims.

I claim :l

l. In a lock, a casing, a substantially arcuate dead bolt movable in said easing, gear teeth around the periphery ot said dead bolt, a key-operated pinion meshing with the teeth on said dead bolt for moving the latter, a cam member movable with said dead bolt, and a spring-pressed follower co-acting with said cam tor moving the dead bolt to and holding the latter in either of its extreme positions.

2. In a lock, a casing, a dead bolt pivotally mounted in said casing, a pinion rotatably mounted in said casing` and meshing with teeth carried by said dead bolt for moving the latter, and a cam and co-acting springpressed follower carried by said casing and dead bolt for moving the latter to and holding the same in one of its eXtreme positions.

3. In a lock, a casing, a dead bolt carried by said casing, gear teeth on said dead bolt, a pinion rotatably mounted in saidv casing and meshing` with the teeth on said dead bolt, and a cam and spring-pressed follower for moving said dead bolt to and holding the latter in one of its extreme positions,` said ipinion having means for cooperation with part or" a cylinder lock whereby the pinion may be rotated by means of a cylinder lock.

4. In a lock, a casing, a substantially arcuate dead bolt pivotally mounted in said casing, gear teeth around the periphery of said dead bolt, and a pinion in said casing and meshing with the teeth on said dead bolt for moving the latter, said pinion being operable from the outside of the casing and resilient means for moving the dead bolt to one; extreme position when the same has been moved part way by other means.

5. In combination with an auxiliary lock, a casing, a dead bolt in said casing and having gear teeth thereon, and a pinion in said casing meshing with the teeth on said dead bolt for operating the latter, said pinion being` connected with and operable by said auxiliary lock and resilient means for snapping said dead bolt to one extreme position.

6. In a lock, a casing, a toothed dead bolt in said casing, a pinion in said casing and meshing with said toothed dead bolt for moving the latter, a cam member movable with said dead bolt, a spring-pressed latch bolt in said casing, and a follower carried by said latch bolt and coperating with said cam whereby said latch bolt may be withdrawn by said cam after the dead bolt has been moved to the unlocked position.

7. In a lock, a casing, a dead bolt pivot* ally mounted in said casing, a toothed pinion in said casing and meshing with teeth carried by Said dead bolt for moving` the latter, a spring-pressed latch bolt in said casing, and co-acting means movable with said dead bolt and latch for withdrawing the latter after the dead bolt has been moved to the unlocked position.

S. In a lock, a casing, a dead bolt pivotally mounted in said casing, a toothed pinion in said casing and meshing with teeth carried by said dead bolt for moving the latter, a spring-pressed latch bolt in said casing, co-acting means movable with said dead bolt and latch for withdrawing the latter after the dead bolt has been moved to the unlocked position, and a night latch cooperating with said dead bolt for holding the latter in the locked position.

9. In a lock7 a casing, a pinion rotatably mounted in Said casing, a geared segment mounted in said casing and cooperating with said pinion, a latch bolt movable in said casing, a cam and Jfollower means movable with said segment and latch bolt for moving said latch bolt in one direction, and means for locking said segment in oneJ position whereby the latch bolt may not be moved by said segment.

10. In a lock, a casing, a pin journaled in said casing, a dead bolt mounted on said pin, a cam mounted on said pin, said three parts being movable as a unit, a toothed pinion in said casing and meshing with teeth on said dead bolt for moving the latter7 a spring-pressed latch bolt in said casing, and a follower on said latch bolt and coperatingif'with said cam whereby upon rotation of said pinion said dead bolt may be moved to the unlocked position and said latch bolt withdrawn by said cam.

PETER SOLAINI. 

